As’adi, M. (2011). Dahsyatnya senam otak [The great impact of brain exercise]. Yogyakarta: Diva Press.
Dennison, P. E., & Dennison, G. E. (2006). Buku panduan lengkap brain gym-senam otak [Complete guideline book of brain gym]. Jakarta: Grasindo.
Doewes, M. (2009). Exercise and Brain Health in Elderly. Folia Medica Indonesiana, 45(2), 161.
Folstein, M. F., Robins, L. N., & Helzer, J. E. (1983). The mini-mental state examination. Archives of General Psychiatry, 40(7), 812-812.
Gates, N., & Valenzuela, M. (2010). Cognitive exercise and its role in cognitive function in older adults. Current Psychiatry Reports, 12(1), 20-27.
Kirk-Sanchez, N. J., & McGough, E. L. (2014). Physical exercise and cognitive performance in the elderly: current perspectives. Clinical Interventions in Aging, 9, 51.
Lautenschlager, N. T., Cox, K., & Cyarto, E. V. (2012). The influence of exercise on brain aging and dementia. Biochimica et biophysica acta (BBA)-Molecular basis of disease, 1822(3), 474-481.
MOH. (2014). Situasi dan analisa lanjut usia [situation and analysis of aging]. Jakarta: Pusat Data Informasi, Ministry of Health of Republic of Indonesia.
Pollock, M. L., Feigenbaum, M. S., & Brechue, W. F. (1995). Exercise prescription for physical fitness. Quest, 47(3), 320-337.
Suhartini, B. (2010). Pemberdayaan lansia dengan aktivitas olahraga rekreasi therapuetik [Empowering elderly with exercise activity of therapeutic recreation]. Medikora, 5(2), 131-140.
van Gelder, B. M., Tijhuis, M., Kalmijn, S., Giampaoli, S., Nissinen, A., & Kromhout, D. (2006). Marital status and living situation during a 5-year period are associated with a subsequent 10-year cognitive decline in older men: the FINE Study. The Journals of Gerontology Series B: Psychological Sciences and Social Sciences, 61(4), P213-P219.
Yusuf, A., Indarwati, R., & Jayanto, A. D. (2017). Brain gym improves cognitive function for elderly. Jurnal Ners, 5(1), 79-86.